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Free Waec 2017 Computer Obj And Theory Answers – May/June Expo

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Waec 2017 Computer Studies OBJ & Theory/Essay QUESTION AND ANSWERS Free Expo

WAEC COMPUTER STUDIES 2017/2018

1a) Input device are devices by which data, information and instructions into the computer system
1b) keyboard
ii) light pen
1c) i) Logic gates are digital components that
typically work two levels of voltage and
determine how a component conducts
electricity.
ii) Logic gates use Boolean
equations and switch tables.

3a)
information is an analyzed or processed data, which is now
more meaningful and decisions can be made based on its
data and information is connected.
Communication technology is the activity of designing,
constructing and maintaining communication systems. In
the modern era it is referred to as ICT. This is information
and communications technology, and includes any
communication device or application such as radio and
television.

(3b)
LAN-local area network
GPS-global postioning Service.
IP-internet protocol

 (3b)
LAN-local area network
GPS-global postioning Service.
IP-internet protocol

==========================

(4b)ii.
+Password-protect
+documents encryption
+Secure wireless transmissions

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